Experimental studies on the intensification of grinding processes in a step centrifugal mill
https://doi.org/10.31242/2618-9712-2019-24-2-5
Abstract
Results of the experimental studies of grinding processes under multiple dynamic impact in a centrifugal step mill designed at the MIN SB RAS are reported. To enhance the grinding effect, it is proposed to mount additional baffle elements at the movable bodies of the mill. However, this is not always a solution of the problem because there is a negative effect of air flows formed in the working space between the upper and lower movable bodies. A rational number of additional baffle elements, determined by the critical air flow rate in the working chamber of the laboratory step mill which should be up to 10 m/s was determined in research and development works. Under these conditions, a substantial increase in grinding degree is achieved, in comparison with the basic version of the laboratory centrifugal step mill without baffle elements.
About the Authors
Andrey Innokentievich Matveev
N.V. Chersky Mining Institute of the North, SB RAS
Russian Federation
Russian Federation
Matveev Andrey Innokentievich, Doctor of Technical Sciences, Principal Researcher, N.V. Chersky Mining Institute of the North, SB RAS, 43 Lenina pr., Yakutsk, 677980, Russia, https://orcid.org/0000-0002-4298-599, andrei.mati@yandex.ru
Vasily Romanovich Vinokurov
N. V. Chersky Mining Institute of the North, SB RAS
Russian Federation
Russian Federation
Vinokurov Vasily Romanovich, Research Assistant, N. V. Chersky Mining Institute of the North, SB RAS, 43 Lenina pr., Yakutsk, 677980, Russia, https://orcid.org/0000-0001-5698-7922, vaviro@mail.ru
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Review
For citations:
Matveev A.I., Vinokurov V.R. Experimental studies on the intensification of grinding processes in a step centrifugal mill. Arctic and Subarctic Natural Resources. 2019;24(2):56-63. (In Russ.) https://doi.org/10.31242/2618-9712-2019-24-2-5
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